JP2896028B2 - refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a box of a refrigerator, and more particularly to a structure in which a refrigerant pipe through which a high-temperature refrigerant passes to prevent the box from being exposed is connected to each chamber from a front edge of an outer box. The present invention relates to a structure for piping to an intermediate partition wall.

[0002]

2. Description of the Related Art As shown in FIG. 5, a refrigerant pipe 5 is provided on a front edge 3 of a box body 1 of a conventional refrigerator to prevent dew (for example, Japanese Patent Publication No. 3-33996). .

[0003] The refrigerant pipe 5 is used to condense a high-temperature and high-pressure refrigerant discharged from a compressor (not shown) into a condenser ( not shown) .
(Not shown ) to an evaporator (not shown). This refrigerant pipe 5 is also arranged on the front surface of a middle partition wall (not shown) that partitions each room of the refrigerator . Of this partition wall
The refrigerant pipes 5 arranged on the front face extend from the front side edge of the box to the middle.
It is continuously connected to the partition wall. An enlarged exploded view of the continuous portion A is shown in FIG. FIG. 7 shows a horizontal sectional view after the assembly of FIG.

That is, the box 1 of the refrigerator comprises an outer box 7 and an inner box 9.
Consisting of Further, an intermediate partition wall (not shown) is provided to partition the internal space into each room. A double flange 11 is provided on the front side edge of the outer box 7, and a refrigerant pipe 5 is provided in the double flange 11. The flange 13 of the inner box 9 is inserted into the double flange 11. Both ends of the partition wall contact plate 15 that covers the front surface of the partition wall are also inserted into the double flange 11. A large notch 17 is formed in the middle of the double flange 11 in the vertical direction, so that the refrigerant pipe 5 can be continuously piped from inside the double flange 11 to the middle partition wall. A substantially U-shaped concave portion 19 is formed in the inner box 9 corresponding to the position of the large notch 17. By forming the concave portion 19, a substantially U-shaped convex portion 21 is formed on the back surface of the inner box 9. By inserting the convex portion 21 into the large notch 17, a gap is secured between the inner box 9 and the outer box 7.

As described above, the large notch 17 is formed in the double flange 11, but the space between the outer box 7 and the inner box 9 is filled with a heat insulating material such as polyurethane foam. A member for closing the heat insulating material so as not to leak out is required. A hinge member 23 for opening and closing the door of the refrigerator is provided from the outer box 7 of the partitioning plate 15.
(FIG. 7) is provided. Therefore, the portion whose strength has been reduced by the large notch 17 must be reinforced with some kind of reinforcing material.

For these reasons, a hinge fixing plate mounting plate 25 is applied from the back of the inner box 9 and a hinge fixing plate 27 is applied from the front surface, and both are fixed by bolts. This hinge stop plate 27
Is also bolted to the partitioning plate 15. FIG. 8 is a front view showing the relationship between the outer box 7 and the inner box 9 in FIG.

[0007]

However, in the conventional structure, the refrigerant pipe 5 is not provided with the double flange 11 of the outer box.
There is a problem in that a portion piped from the inside to the front surface of the partition wall has a large number of components, and the manufacturing cost and the assembly cost of each component are increased.

Accordingly, an object of the present invention is to solve such a problem and to provide a refrigerator which can reduce the number of parts in the above-mentioned portion, does not leak heat insulating material, and can obtain sufficient strength.

[0009]

In order to achieve the above object, the present invention provides an inner box having an outward flange at a front edge, an inner flange and an outer flange, and having an inward opening groove. outer box and, through the grooves of the double flange, and a refrigerant pipe is led to the front of the refrigerator partition wall, the flange of the inner box double flange of the outer box having a double flange to the front edge having fitted into the groove of the ones filled with foam insulation between these inner box and outer box, wherein
The inner box flange is led to the front of the refrigerator partition wall
A recess for piping the refrigerant pipe, wherein the inner flange of the outer box is provided with a recess provided in the flange of the inner box.
Is provided with a slit extending in the longitudinal direction at a portion where is located.

[0010]

When the flange of the inner box is fitted into the double flange of the front side edge of the outer box, the concave portion provided on the flange of the inner box.
The convex portion of the back surface, to press the inner flange of the double flange inwardly. However, according to the present invention, a slit extending in the longitudinal direction is provided in a portion of the inner flange of the outer box, which is a portion corresponding to the concave portion. When fitting into the inside, the portion of the inner flange provided with the slit is deformed, and this deformation occurs along the shape of the concave portion provided in the flange of the inner box, so that in the subsequent filling step of the foamed heat insulating material, Does not leak out. Also, according to this, it is not necessary to provide a large notch in the inner flange of the outer box as in the conventional case, so that the strength of the flange is not reduced, and a heat insulating material is injected between the outer box and the inner box. After that, since the heat insulating material bears the strength, the hinge fixing plate mounting plate and the hinge fixing plate as in the related art can be omitted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The refrigerator box 1 (see FIG. 5 of the conventional example) includes an outer box 7 forming an outer surface and an inner box 9 forming an inner surface. The outer box 7 is made of a painted iron plate or the like, and the inner box 9 is made of a material such as plastic by a vacuum forming method or the like. The space inside the inner box 9 is divided into a freezing room, a refrigerator room,
An intermediate partition wall is provided for each of the upper and lower rooms such as a vegetable room.
Then, between the outer box 7 and the inner box 9, a heat insulating material such as foamed polyurethane is injected.

A double flange 11 is formed on the front side edge 3 of the outer box 7. The double flange 11 is formed to face left and right inward in the figure, and is composed of an inner flange 11A and an outer flange 11B. The double flange 11 is continuous in the up-down direction. Not formed.

The structure of the double flange 11 is such that an end of an iron plate constituting the outer box 7 is bent back to have a substantially S-shaped cross section. A refrigerant pipe 5 for preventing dew condensation is provided inside the double flange 11. This refrigerant pipe 5 is made of a material such as copper or aluminum. The refrigerant flowing through the refrigerant pipe 5 is compressed by a compressor.
It is a high-temperature, high-pressure refrigerant that has been compressed and sent
The heat is condensed and condensed by the sensor and turns into a liquid refrigerant.
Sends heat to the evaporator while releasing heat to prevent dew
Can be

The flange 13 having the L-shaped tip of the inner box 7 is also inserted into the double flange 11, whereby the outer box 7 and the inner box 9 are fitted. In the fitted state, the double flange 11 is closed (FIG. 3).

A groove 9A is formed on the surface of the inner box 9 at a position where the inner partition wall (not shown) is provided. This groove 9
Both ends of the partition wall are inserted into A and supported. The groove 9 </ b> A continues to a substantially U-shaped concave portion 19 formed on the front surface of the flange 13. The recess 19 is for guiding the refrigerant pipe 5 in the double flange 11 and piping the refrigerant pipe 5 to the front surface of the partition wall.

Since the inner box 9 is a plate-shaped member, the concave portion 19 forms a convex portion 21 on the back surface. The substantially U-shaped convex portion 21 is also inserted into the double flange 11.
1A is provided with a longitudinal slit 29 extending in the longitudinal direction.

The vertical slit 29 is for expanding the inner flange 11A by itself when the inner flange 11A is pressed with the insertion of the convex portion 21, thereby facilitating the deformation of the inner flange 11A. The length and width of the vertical slit 11A are determined to be optimum dimensions by the thickness and rigidity of the iron plate constituting the outer box 7, and the height and rigidity of the convex portion 21 of the inner box 9. By setting this to the optimum size, the inner flange 11A can be reduced to an unnecessary length.
Can be prevented from being deformed and the inner box 9 can be hardly inserted.

In assembling the above refrigerator, first, a refrigerant pipe 5 is piped inside the groove of the double flange 11 formed in the outer box 7. This refrigerant pipe 5 is led out toward the partition wall at the portion where the vertical slit 29 is provided, turns into a U-shape, and again has the double flange 11.
It has a shape that returns inside (see FIG. 5).

Next, a part of the refrigerant pipe 5 which turns into a U-shape is temporarily bent in a forward direction (a direction away from the partition wall), and the flange 13 of the inner box 9 is Insert into the groove. At the time of insertion, the protrusion 2 of the inner box 9
1 presses the inner flange 11A of the double flange 11 inward. That is, the gap between the double flanges 11 in the portion where the convex portion 21 is inserted does not have a sufficient size, and the inner flange 11 </ b> A is pressed by the convex portion 21.

In this embodiment, however, the vertical slit 29 is expanded by this pressing, so that the inner flange 1
1A is easily deformed in the pressing direction, and this deformation is performed along the convex portion 21 and becomes substantially U-shaped.

Next, the temporarily bent U-shaped part of the refrigerant pipe 5 is returned to its original state so as to be along the front surface of the partition wall, and then guided into a U-shape. The partitioning plate 15 is disposed on the front surface of the refrigerant pipe 5, and both ends of the partitioning plate 15 are inserted into the double flange 11.

In this way, the flange 13 of the inner box 9 receives a certain amount of tightening force and, at the same time, the partitioning plate 15
Flanges also gain clamping force.

Both ends of the inserted partitioning abutment plate 15 are fixed to the outer flange 11B of the double flange 11 with two screws. Thereafter, a heat insulating material is filled between the outer box 7 and the inner box 9 and, when this is hardened, the partitioning abutment plate 15 is supported with sufficient strength. Therefore, the hinge member 23 is attached to the intermediate partition plate 15 with bolts or the like (see FIG. 7 of the conventional example).
reference).

As is clear from the above, since the deformation of the inner flange 11A occurs along the convex portion 21, there is no need to create an unnecessary large gap, and the heat insulating material is prevented from leaking from the gap. . In addition, when the flange 13 of the inner box 9 is fitted, the convex portion 21 presses the inner flange 11A of the double flange 11 and fits while deforming the inner flange 11A. And the outer box 7 and the inner box 9 are temporarily fixed temporarily. According to this, the filling of the heat insulating material in the subsequent step becomes easy.

Since the double flange 11 is not provided with a large notch 17 (FIG. 6) as in the prior art, it is possible to eliminate a large decrease in strength caused by the notch 17. Further, the heat insulating material filled between the outer box 7 and the inner box 9 has sufficient rigidity after hardening, and gives great strength to the box. From these facts, the hinged stopper plate 2 as in the prior art is used.
Even if the hinge plate 7 and the hinge fixing plate mounting plate 25 (see FIG. 6 of the conventional example) are omitted, various effects can be obtained such that the hinge member 23 (see FIG. 7 of the conventional example) can be supported with sufficient strength. Can be.

[0026]

As described above, according to the refrigerator of the present invention, a large notch as in the prior art is eliminated from the double flange of the outer box, and instead, the flange of the inner box is inserted into the double flange. In doing so, since a slit for deforming the inner flange is provided, only the portion provided with the slit is deformed at the time of insertion, so that the heat insulating material leaks out in the subsequent heat insulating material filling step Never. Further, since the large notch is eliminated from the double flange, and the strength is filled by the filled heat insulating material itself, a sufficient strength can be secured as a whole. Therefore, even if the conventional hinge fixing plate mounting plate and the hinge fixing plate are omitted, leakage of the heat insulating material can be prevented, and sufficient strength can be maintained, so that the number of parts can be reduced. Can be kept low.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention.

FIG. 2 is a perspective view showing a state after assembling FIG. 1 together with a horizontal section.

FIG. 3 is a horizontal sectional view showing another part of FIG. 2;

FIG. 4 is a front view showing a relationship between an outer box and an inner box in FIG. 1;

FIG. 5 is a schematic overall view of a refrigerator box.

FIG. 6 is an enlarged view of part A of FIG. 5 (corresponding to FIG. 1);
It is an exploded perspective view of a conventional example.

FIG. 7 is a horizontal sectional view showing a state where FIG. 6 is assembled.

FIG. 8 is a front view showing a relationship between an outer box and an inner box in FIG. 6;

[Explanation of symbols]

 5 Refrigerant Pipe 7 Outer Box 9 Inner Box 11 Double Flange 11A Inner Flange 11B Outer Flange 13 Flange 15 Middle Partition Plate 17 Notch 19 Concave 21 Convex 25 Hinge Stop Plate Mounting Plate 27 Hinge Stop Plate 29 Vertical Slit

Claims (1)

(57) [Claims] 1. An inner box having an outward flange at a front edge, an outer box comprising an inner flange and an outer flange, and having a double flange at the front edge having an inward opening groove, and the double flange. through grooves of a refrigerant pipe is led to the front of the refrigerator partition wall, fitted flange of the inner box into the groove of the double flange of the outer box, between these inner box and outer box Filled with foam insulation ,
Before the box flange is led to the front of the refrigerator partition wall
A recess for piping the refrigerant pipe is provided, and the inner flange of the outer box has a recess provided on the flange of the inner box.
A refrigerator provided with a slit extending in a longitudinal direction at a portion where the refrigerator is located.